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一个创新的公私伙伴关系创造了一个实惠的“新水”来源 - 解锁新的方式来培养沙漠社区,并节省世界的自然资源。


Set amidst the Sonoran Desert, North America’s hottest desert, water in Pima County, Arizona is a vital yet sparse resource. The Lower Santa Cruz River supports desert life, replenishes the region’s drinking water supplies and is playground to residents and visitors alike. Protecting this valuable resource is a key priority for the Pima County Regional Water Reclamation Department.

Because traditional project delivery couldn’t meet the County’s regulatory deadlines to improve its effluent and protect river water quality, they selected Jacobs to help implement an advanced water reclamation facility using the design-build-operate delivery model. Driven by an unwavering commitment to success, Jacobs and Pima County forged a lasting partnership, while working with local businesses, residents and stakeholders every step of the way.

综合团队在一起揭开了一个行业 - 第一污水处理过程,节省了数百万美元的纳税人,增强了珍贵的水供应,并在监管机构和利益相关者的注意力下提供关键基础设施项目的新标准。


Design and delivery strategies saved the County $77 million






在novative design reduced Agua Nueva’s footprint by over 75%


雅各布斯的表现在所有方面都非常出色。他们的递送方法是基于真正的合作精神,在最早的项目阶段实施并在整个交货中持续了......我们对项目结果非常满意 - 一个项目在最终合同价值之低于最终合同价值后提供了200万美元,并提前8个月完成。“

Pima County地区废水填海部主任
  • Agua Nueva Water Reclamation Facility Main Entrance
  • Agua Nueva行政大楼
  • Agua Nueva DAF结构
  • Agua Nueva Chartering.
  • Agua Nueva最终澄清机建筑
  • Agua Nueva FInal Clarifier

Whatwas involved?


Agua Nueva最终澄清器

Comprehensive design and construction capabilities solved the most difficult schedule, budget and technology challenges




在tegrated service offerings provided a more sustainable and positive future for the community


Agua Nueva的占地面积小于其善良的任何设施 - 确保最低成本到RAPERPAYERS的最低部位和环境影响。它的景观和建筑拥有色彩和纹理,镜像沙漠的持久的美丽,作为附近居民和企业的好邻居。促进当地的经济进步,雅各布斯当地的小型商业参与目标增加了一倍多,在社区和聘用的县运营商中志愿服务,以开展新工厂,为PIMA县和雅各布提供新的工作和机遇。

Agua Nueva Ronald McDonald House volunteering
Agua Nueva建筑

Re-engineering water reclamation: The Agua Nueva Water Reclamation Facility

Engineers, builders and operators work hand-in-hand with Pima County to solve this desert community's water resource challenges

越来越多的人口,严格的法规,受限的水资源和小口袋书有城市和市政当局正在寻找更聪明的方式来构建废水处理厂。Pima County’s Agua Nueva Water Reclamation Facility is a great example for how collaboration across the entire project lifecycle can forge deeper relationships and a unique teaming environment – setting the ideal stage for envisioning and unveiling an industry-first wastewater treatment process that saves taxpayers’ money while augmenting critical water supplies for desert communities.

Because compliance schedules could not be met using conventional project delivery, in December 2010 the County selected Jacobs to design, build and operate (DBO) the program’s crown jewel: the new $172 million Agua Nueva Water Reclamation Facility. Producing 32 million gallons of high-quality reclaimed water every day, its unique treatment process includes:

  • New headworks
  • 在fluent pumping
  • 溶解空气浮选(DAF)澄清初级处理和污泥增厚,使用EVOQUA Capitvator TM。
  • 5-Stage Bardenpho activated sludge secondary treatment with step-feed aeration
  • Tertiary filtration
  • Chloramine-based disinfection

Crystalizing the team

决心帮助Pima County实现其雄心壮志,雅各布分为其综合服务产品,组装了一个充满激情的工程师,设计师,建筑师,建筑商和运营商,以在整个项目生命周期中提供技术创新。这提供了一种在我们的施工和运营专家的输入中建造的设计过程,以解决所有时间的结构和可操作性 - 最大限度地提高我们的集体专注于启动和运营效率。它还在施工和启动期间从事工程师和设计师,以避免流程中断,并为长期运营和维护提供平滑的过渡。

Because this was the County’s first DBO project and we were implementing an unproven technology at full scale, partnership was an enduring theme throughout the project. Our formal partnering program unified the team around 14 guiding principles and leveraged the state of the art in collaboration technology – including advanced building information modelling (BIM), 3D visualization, site-wide cameras and video conferencing – engaging Pima County in key activities and decisions at all times.

Driving innovation

Together, the team broke new ground in water reclamation:

  • Primary Treatment.Agua Nueva is the world’s first wastewater facility to use dissolved air flotation for primary treatment (Evoqua CAPITVATOR™) – creating an already thickened sludge ready for processing at significantly reduced costs.
  • Secondary Treatment.Agua Nueva is North America’s first facility to integrate step feed with dissolved oxygen effluent ammonia control – optimizing disinfection, reducing chemical use and improving operational flexibility and reliability.
  • 气味控制。The centralized biofilter system, together with the bioreactor’s dual-bed carbon absorption system, requires no chemicals and minimal attention – creating an affordable, odor-free environment for nearby residents.
  • 控制系统。The fully automated system integrates all treatment components into an efficient, easy-to-operate facility – providing better process control, improved safety, lower operating costs and higher water quality.


Agua Nueva水填海工具在县内的2.4亿美元的440万美元的设计 - 建立预算下,8个月提前8个月,提前8个月,每年的年度运营成本节省200万美元。所有团队成员每天晚上都要安全地回家,每晚提供超过100万人的人,没有损失的伤害。

The County can now maximize the use of its high-quality reclaimed water to irrigate parks, golf courses and other turf facilities, reducing the diversion of water from its sensitive habitats. And with significantly reduced nitrogen levels, water discharged into the Santa Cruz River is safe for aquatic and civic life alike – with restored flora and fauna already returning to the river.

Testament to its importance to the future of water reclamation, the project has received 11 industry awards for its engineering excellence and best practice delivery approach.

这个项目已经从c非常好lient perspective and has been an enjoyable experience for all involved. We are more than satisfied customers.